One of the best ways for a man to style out a grey denim jacket is to wear it with a crew-neck t-shirt in a laid-back outfit. And if you wish to effortlessly elevate your ensemble with a pair of shoes, complete this outfit with a pair of dark brown suede casual boots. In the colder months, when functionality is essential, it can be easy to settle for a less-than-stylish outfit. But this outfit is hard proof that you can actually stay comfy and remain equally stylish during the colder months.